SL1710

SL1710 Quadrature Downconverter Preliminary Information Supersedes October 1996 version in Media IC Handbook HB4599-1.0 DS3842 - 4.1 March 1997 The SL1710 is a quadrature downconverter, intended for use with both Professional and Consumer Digital Satellite Applications. The device contains high linearity, low noise amplifiers, quadrature mixers, plus an on-chip oscillator, operating between 350MHz and 500MHz, which may be synthesised via the differential prescaler outputs. An AGC with 18dB gain control is provided to cope with a wide range of input signal levels. I and Q outputs are via low impedance single ended amplifiers. These may be connected to a dual channel analog to digital converter such as the PCA916, VP216, VP215 or VP213, via a suitable anti-alias filter. AGC IOUT VEEA IFINB IFIN VCCA QOUT VEEC 1 16 VCCB VCODIS VCO B VCO A VEEB PSCAL PSCALB VCCC SL1710 MP16 FEATURES s Wide input frequency range (350-500MHz) s On chip oscillator with varactor tuning or SAW resonator operation capability s Nominal 40dB conversion gain from IF input to I and Q outputs s AGC amplifier with 18dB gain control range s I to Q phase match 90°C to ± 2°, gain match better than 1dB s Low impedance I and Q single ended outputs, with 15MHz ± 1dB BW s Divide by 32 prescaler outputs s Suitable for QPSK and up to 64QAM systems Fig. 1 Pin allocation top view ORDERING INFORMATION SL1710/KG/MPAS SL1710/KG/MPAD (Tape and Reel) ABSOLUTE MAXIMUM RATINGS Storage temperature Junction temperature...